Wet wall behind bathtub tile
My wife was cleaning our tub the other day and a bunch of tiles fell off the wall because of water that had been getting behind them. Since then, I have taken all the tiles off all three walls, and cut out the section of drywall that was excessively wet and crumbling (approximately a 4' by 6' area). The other two walls look quite a bit drier, but have a rough, sandy look to them after removing the tiles. Should I replace the drywall on all three walls before installing a new tub surround, or can I just replace the section of wall that was wet? Any other issues caused by the wet wall that I should investigate before closing up the wet wall area?
If you are on metered water supply, I would look to make sure the leak detector on the meter was not turning with all system outlets closed ( no washer running, no toilet running, etc...) good start to looking for leaks. I understand leaks and the damage they cause but I am not a remodel type of guy, but it sounds like you should demo everything and start fresh, may cost a little more but satisfaction guaranteed....hope this helps some. John